Module plugin_table 

Plugin-as-Table Integration

This module allows WASM plugins to expose virtual tables that can be queried using standard SELECT statements.

Example

A plugin exposing a virtual table:

SELECT * FROM plugin_name.table_name WHERE key = 'value' LIMIT 10

This translates to plugin function calls:

1. describe_table() - Get schema
2. scan_table(filter, limit) - Get matching rows

Virtual Table Protocol

Plugins must export:

• describe_tables() -> Vec<TableDescriptor> - List available tables
• describe_table(name) -> TableSchema - Get table schema
• scan_table(name, filter, limit) -> Vec<Row> - Scan with filter
• get_row(name, key) -> Option<Row> - Point lookup (optional)

Structs

PluginVirtualTable

Virtual table backed by a WASM plugin

VirtualColumnDef

Column definition for a virtual table

VirtualRow

Row from a virtual table

VirtualTableRegistry

Registry for virtual tables

VirtualTableSchema

Schema for a virtual table

VirtualTableStats

Virtual table statistics

Enums

VirtualColumnType

Column type for virtual tables

VirtualFilter

Filter for virtual table scans

VirtualTableError

Virtual table error

Traits

VirtualTable

Virtual table trait